Fig. 2
From: North Korea’s COVID-19 policy dilemma: epidemic prevention conflicting with trade
Location of North Korea-China and North Korea-Russia border trade cities. Note: The above figure is shown using the boundary map of North Korea’s administrative districts provided by the UN, Open Street Map, and World Map, and built into QGIS. The regional boundary map of North Korea utilized a file from the United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA), which can be accessed through the link https://data.humdata.org/dataset/cod-ab-prk